JPS6239890B2 - - Google Patents
Info
- Publication number
- JPS6239890B2 JPS6239890B2 JP55106598A JP10659880A JPS6239890B2 JP S6239890 B2 JPS6239890 B2 JP S6239890B2 JP 55106598 A JP55106598 A JP 55106598A JP 10659880 A JP10659880 A JP 10659880A JP S6239890 B2 JPS6239890 B2 JP S6239890B2
- Authority
- JP
- Japan
- Prior art keywords
- rotation
- signal
- measured
- output
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
- G01M1/26—Determining imbalance by oscillating or rotating the body to be tested with special adaptations for marking, e.g. by drilling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
- G01M1/22—Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
Description
【発明の詳細な説明】
本発明は動釣合試験機に用いる自動不釣合点位
置決め装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic unbalance point positioning device for use in a dynamic balance tester.
基本的な動釣合試験機としては、被測定体に基
準マークを付けて一定速度で回転させ、この回転
数に同期した周波数でストロボを発光させて被測
定体を照射し、基準マークが停止して見える位置
の角度を読み取つて不釣合点の位置を検出するも
のが知られている。 A basic dynamic balance tester attaches a reference mark to the object to be measured, rotates it at a constant speed, emits a strobe at a frequency synchronized with this rotation speed, and irradiates the object to be measured, until the reference mark stops. There is a known method that detects the position of an unbalanced point by reading the angle of the visible position.
しかし、このような試験機においては、すべて
の被測定体に基準マークを付ける作業が必要とな
るため生産性がよくなかつた。 However, in such a testing machine, productivity is not good because it is necessary to attach reference marks to all the objects to be measured.
このような点を改良したものとして、被測定体
をベルト駆動するプーリに零度位置として基準マ
ークを設け、この基準マークをフオトセンサで検
出して被測定体の不釣合点の角度検出を行なうも
の、また、基準マークは設けずにマグネツト式、
光電式等の位置センサによつて被測定体の不釣合
点の角度検出を行なうもの等が提案されている。 As an improvement on these points, a reference mark is provided as a zero degree position on the pulley that drives the object to be measured with a belt, and this reference mark is detected by a photo sensor to detect the angle of the unbalance point of the object to be measured. , magnetic type without reference mark,
There have been proposals for detecting the angle of an unbalanced point of a measured object using a photoelectric position sensor or the like.
しかし、このような試験機においては、角度位
置検出のために高感度のセンサが必要となり、コ
ストが高くなるとともにセンサにスペースをとら
れて設計の自由度が低下するという欠点があつ
た。 However, such a testing machine requires a highly sensitive sensor to detect the angular position, which has the disadvantage of increasing cost and reducing the degree of freedom in design as the sensor takes up space.
本発明は従来のこのような欠点を取り除くため
になされたものであり、ノーマキングかつノーセ
ンサで不釣合が自動的に所定の位置に位置決めで
きるような自動不釣合点位置決め装置を得ること
を目的とする。 The present invention has been made in order to eliminate these conventional drawbacks, and an object of the present invention is to provide an automatic unbalance point positioning device that can automatically position the unbalance at a predetermined position without marking or using a sensor.
次に実施例によつて本発明を詳細に説明する。 Next, the present invention will be explained in detail with reference to Examples.
第１図は本発明の自動不釣合点位置決め装置の
一実施例のブロツク回路図である。１は被測定
体、２はこの被測定体１を回転駆動するための直
流サーボモータ、３はこの直流サーボモータ２の
ロータ軸に設けられたタコジエネレータ、４は同
じくロータ軸に設けられたロータリエンコーダ、
５は直流サーボモータ２の回転を制御するモータ
制御回路である。ここで、ロータリエンコーダ４
は１回転で360個のパルスを出力する。すなわ
ち、直流サーボモータ２のロータ軸が１度回転す
る毎に１パルスの角度信号が出力されることにな
る。そしてモータ制御回路５は、タコジエネレー
タ３からの回転数信号を入力して設定された回転
数に、またロータリエンコーダ４からの角度信号
を入力して設定された回転角度にそれぞれ直流サ
ーボモータ２を制御する。 FIG. 1 is a block circuit diagram of an embodiment of the automatic unbalance point positioning device of the present invention. 1 is an object to be measured, 2 is a DC servo motor for rotationally driving this object to be measured 1, 3 is a tachometer generator provided on the rotor shaft of this DC servo motor 2, and 4 is a rotary encoder also provided on the rotor shaft. ,
5 is a motor control circuit that controls the rotation of the DC servo motor 2. Here, rotary encoder 4
outputs 360 pulses per revolution. That is, one pulse of the angle signal is output every time the rotor shaft of the DC servo motor 2 rotates once. The motor control circuit 5 controls the DC servo motor 2 to the set rotation speed by inputting the rotation speed signal from the tachometer generator 3 and to the set rotation angle by inputting the angle signal from the rotary encoder 4. do.
６は被測定体１の不釣合を検出するピツクアツ
プ、７はピツクアツプ６の出力の基本周波数帯域
の信号のみを通過させるフイルタである。このよ
うなフイルタ７としてはトラツキングフイルタや
可変バンドパスフイルタ等が使用される。８はフ
イルタ７から出力される正弦波を矩形波に変換す
る波形整形回路、９は波形整形回路８から出力さ
れる矩形波を微分し正信号のみ出力する微分回路
である。以上の各部品および回路により回転信号
発生手段が構成される。１０はモータ制御回路５
から出力される減速信号によつてＱ出力が保持さ
れるフリツプフロツプ回路、G1はフリツプフロ
ツプ回路１０のＱ出力と微分回路９の出力が入力
するアンドゲート、１１はアンドゲートG1の出
力によつてＱ出力が保持されるフリツプフロツプ
回路、G2はフリツプフロツプ回路１１のＱ出力
とエンコーダ４からの角度信号が入力するアンド
ゲート、１２はあらかじめ所定のカウント数がプ
リセツトされており、入力パルスのカウント数が
これに一致したときモータ制御回路５に停止信号
を送出するプリセツトカウンタである。 Reference numeral 6 represents a pickup for detecting unbalance of the object to be measured 1, and reference numeral 7 represents a filter that allows only the signal in the fundamental frequency band output from the pickup 6 to pass. As such a filter 7, a tracking filter, a variable bandpass filter, or the like is used. 8 is a waveform shaping circuit that converts the sine wave output from the filter 7 into a rectangular wave, and 9 is a differentiation circuit that differentiates the rectangular wave output from the waveform shaping circuit 8 and outputs only positive signals. The above-mentioned parts and circuits constitute the rotation signal generating means. 10 is a motor control circuit 5
G1 is an AND gate to which the Q output of the flip-flop circuit 10 and the output of the differentiating circuit 9 are input; 11 is a flip-flop circuit whose Q output is held by the deceleration signal output from G2 is an AND gate into which the Q output of the flip-flop circuit 11 and the angle signal from the encoder 4 are input; G2 is an AND gate in which a predetermined count number is preset, and the count number of input pulses is This is a preset counter that sends a stop signal to the motor control circuit 5 when this matches.
第２図はピツクアツプ６の部分の構造説明図で
ある。１４は被測定体１の軸、１５は軸１４を支
持する軸受、１６は軸受１５の振動をピツクアツ
プ６に伝えるための支柱、１７は直流サーボモー
タ２のロータ軸、１８はロータ軸１７に固定され
たプーリ、１９はプーリ１８の回転を滑りなく被
測定体１に伝えるためのベルトである。なお、軸
１４の反対側にも軸受、支柱、ピツクアツプがあ
るが説明は省略する。ピツクアツプ６は水平方向
（図で左右方向）に検出感度を持つており、軸１
４が右方向に動いたとき正出力、左方向に動いた
とき負出力を出すようになつている。したがつ
て、プーリ１８が直流サーボモータによつて矢印
の方向に回転させられると被測定体１も同方向に
回転し、重い不釣合点が真上のＡ点を通過したと
き軸受１５および支柱１６の右方への移動速度は
最高になり、ピツクアツプ６からは正のピーク値
が出力される。さらに、ピツクアツプ６の出力は
Ｂ点で零、真下のＣ点で負のピーク値、Ｄ点で零
になる。 FIG. 2 is an explanatory diagram of the structure of the pickup 6. As shown in FIG. 14 is a shaft of the object to be measured 1, 15 is a bearing that supports the shaft 14, 16 is a column for transmitting the vibration of the bearing 15 to the pickup 6, 17 is a rotor shaft of the DC servo motor 2, and 18 is fixed to the rotor shaft 17. The pulley 19 is a belt for transmitting the rotation of the pulley 18 to the object to be measured 1 without slipping. Note that there are also bearings, struts, and pick-ups on the opposite side of the shaft 14, but their explanation will be omitted. Pickup 6 has detection sensitivity in the horizontal direction (left and right in the figure), and axis 1
When 4 moves to the right, it outputs a positive output, and when it moves to the left, it outputs a negative output. Therefore, when the pulley 18 is rotated in the direction of the arrow by the DC servo motor, the object to be measured 1 also rotates in the same direction, and when the heavy unbalance point passes point A directly above, the bearing 15 and the support column 16 The moving speed to the right becomes the highest, and the pickup 6 outputs a positive peak value. Furthermore, the output of the pickup 6 becomes zero at point B, a negative peak value at point C directly below, and zero at point D.
第３図は直流サーボモータおよび被測定体が定
速回転しているときの回路各部の波形図である。
イはピツクアツプ６の出力波形で被測定体１の回
転の上に数多くのノイズがのつている。ロはフイ
ルタ７の出力波形でノイズが除去されきれいな正
弦波になつている。ハは波形整形回路８の出力波
形で正弦波と同位相の矩形波になつている。ニは
微分回路９の出力波形で矩形波の立上りと同位相
のパルス波形になつている。このパルス信号が被
測定体の不釣合点の１回転毎に出力される周期Ｔ
の回転信号となる。回転信号は重い不釣合点が第
２図のＤ点を通過するタイミングで出力される。
ホはロータリエンコーダ４から出力される角度信
号の波形で回転信号の１周期（Ｔ）の間に例えば
360個発生する。 FIG. 3 is a waveform diagram of each part of the circuit when the DC servo motor and the object to be measured are rotating at a constant speed.
Figure 6 shows the output waveform of the pickup 6, with a lot of noise superimposed on the rotation of the object 1 to be measured. B is the output waveform of filter 7, which has noise removed and becomes a clean sine wave. C is the output waveform of the waveform shaping circuit 8, which is a rectangular wave having the same phase as the sine wave. D is the output waveform of the differentiating circuit 9, which is a pulse waveform having the same phase as the rising edge of the rectangular wave. The period T in which this pulse signal is output for each rotation of the unbalance point of the object to be measured
This is the rotation signal. The rotation signal is output at the timing when the heavy unbalance point passes point D in FIG.
E is the waveform of the angle signal output from the rotary encoder 4, for example, during one period (T) of the rotation signal.
360 occur.
第４図イは直流サーボモータの回転制御特性図
である。直流サーボモータ２は指令プログラムに
応じてモータ制御回路５によつて回転制御され
る。モータはt0の時点で起動して増速され、t1の
時点で定格回転数N2（例えば1800r.p.m.）に達し
てt2の時点までこの定速回転を持続する。t2の時
点で減速信号が送出されるとともにモータは減速
され、t3の時点で直ちに停止できる程度の低速回
転数N2（例えば1r.p.s.）に達してその回転数を
持続する。やがてt4の時点で後記するプリセツト
カウンタ１２からの停止信号によつて制動がかけ
られモータは直ちに停止する。なお、t0〜t1は約
0.5秒、t1〜t2は約２秒、t2〜t3は約1.5秒で制御さ
れる。 FIG. 4A is a rotation control characteristic diagram of the DC servo motor. The rotation of the DC servo motor 2 is controlled by a motor control circuit 5 according to a command program. The motor is started and speeded up at time t0 , reaches the rated rotational speed N2 (for example, 1800 rpm) at time t1 , and continues to rotate at this constant speed until time t2 . At time t2 , a deceleration signal is sent and the motor is decelerated, and at time t3 , the motor reaches a low rotational speed N2 (for example, 1 r.ps) that can be stopped immediately and maintains that rotational speed. Eventually, at time t4 , braking is applied by a stop signal from a preset counter 12, which will be described later, and the motor immediately stops. Note that t 0 to t 1 is approximately
0.5 seconds, t1 to t2 about 2 seconds, and t2 to t3 about 1.5 seconds.
第４図ロはイのタイミングに合せて参考に示し
た第３図ハの矩形波の波形である。モータの回転
数に応じて周期が変化している。 FIG. 4B shows the waveform of the rectangular wave shown in FIG. 3C, which is shown for reference at the timing shown in A. The period changes depending on the rotation speed of the motor.
次に、第５図により不釣合点の自動位置決め動
作を説明する。 Next, the automatic positioning operation of the unbalanced point will be explained with reference to FIG.
第５図は直流サーボモータの減速から停止まで
の回路各部のタイムチヤートである。イはモータ
制御回路５から送出される減速信号を示すもの
で、この信号を入力してフリツプフロツプ回路１
０のＱ出力はロに示すように“１”になる。ハは
微分回路９から出力される回転信号を示す。そし
て、t2の時点にＱ出力によつてアンドゲートG1は
ゲートオンされているので、このゲートオン後最
初に回転信号が入つてきた時点t20でアンドゲー
トG1の出力は“１”になり、これによつてフリ
ツプフロツプ回路１１のＱ出力はニに示すように
“１”になる。ホはロータリエンコーダ４から出
力される角度信号を示す。t20の時点にＱ出力に
よつてアンドゲートG2はゲートオンされるの
で、以後角度信号はヘに示すようにプリセツトカ
ウンタ１２に入力される。ここで、プリセツトカ
ウンタ１２には、t2からt3までの間に送出される
角度信号の数よりやや多い所定の数、すなわち
t20からt4までの間に送出される角度信号の数ｎが
プリセツトされているので、アンドゲートG2か
ら出力される角度信号がｎ個カウントされたt4の
時点で、プリセツトカウンタ１２からトに示すよ
うに停止信号がモータ制御回路５に送出される。
直流サーボモータ２はt3以降は1r.p.s.程度の超低
速で回転しているので、この停止信号によつて遅
れることなく直ちに停止する。角度信号のパルス
カウント数から直流サーボモータ２の停止位置が
わかるので、これと同位相で回転している被測定
体１の停止位置もわかる。t20からt4までのモータ
の回転数をＮとした場合、前記プリセツト数ｎを
例えば、ｎ＝360×Ｎ＋180と設定すると、第５図
ハの回転信号は重い不釣合点が第２図のＤ点を通
過するとき発生するので、この不釣合点はＢ点に
停止する。ｎ＝360×Ｎ＋90と設定すると不釣合
点はＡ点に停止する。このように削り加工すべき
重い不釣合点はプリセツトの数によつて任意の位
置に停止させることができる。 FIG. 5 is a time chart of each part of the circuit from deceleration to stop of the DC servo motor. A indicates a deceleration signal sent from the motor control circuit 5. This signal is input to the flip-flop circuit 1.
The Q output of 0 becomes "1" as shown in (b). C shows the rotation signal output from the differentiating circuit 9. Since AND gate G 1 is gate-on by the Q output at time t 2 , the output of AND gate G 1 becomes "1" at time t 20 when the rotation signal first comes in after this gate is turned on. As a result, the Q output of the flip-flop circuit 11 becomes "1" as shown in d. E indicates the angle signal output from the rotary encoder 4. Since the AND gate G2 is gated on by the Q output at time t20 , the angle signal is thereafter inputted to the preset counter 12 as shown in FIG. Here, the preset counter 12 has a predetermined number slightly larger than the number of angle signals sent out between t 2 and t 3 , i.e.
Since the number n of angle signals sent out from t 20 to t 4 is preset, at the time t 4 when n angle signals output from the AND gate G 2 have been counted, the preset counter 12 A stop signal is sent to the motor control circuit 5 as shown in FIG.
Since the DC servo motor 2 rotates at an extremely low speed of about 1 r.ps after t3 , it immediately stops without delay due to this stop signal. Since the stop position of the DC servo motor 2 can be determined from the pulse count number of the angle signal, the stop position of the object to be measured 1 rotating in the same phase can also be determined. If the number of rotations of the motor from t 20 to t 4 is N, and if the preset number n is set to, for example, n = 360 x N + 180, then the rotation signal in Figure 5 C will have a heavy unbalance point at D in Figure 2. This unbalance point stops at point B because it occurs when passing through point B. If n=360×N+90 is set, the unbalanced point will stop at point A. The heavy unbalance point to be machined can be stopped at any position depending on the number of presets.
以上の実施例では被測定体を駆動するのに直流
サーボモータを用いたが高速ステツプモータを用
いることもできる。このステツプモータは可変パ
ルス発振器の電源によつてモータに駆動電力を供
給して、第４図イと同様な回転数制御を行なうこ
とができる。ステツプモータは駆動パルスの周波
数に応じた速度で回転し、パルス数に応じた角度
位置に制御される。したがつて、直流サーボモー
タのようなロータリエンコーダは必要なく電源の
駆動パルスの信号がそのまま角度信号として使用
することができる。すなわち、ステツプモータに
おいては電源がモータ制御回路であるとともに角
度信号発生器としての機能を兼ね備えている。１
回転400ステツプのモータを使用すれば、１パル
ス当りロータ軸は0.9゜回転する。 In the above embodiments, a DC servo motor is used to drive the object to be measured, but a high speed step motor may also be used. This step motor can be controlled in rotational speed in the same manner as shown in FIG. 4A by supplying driving power to the motor using the power source of the variable pulse oscillator. The step motor rotates at a speed that corresponds to the frequency of the drive pulse, and is controlled to an angular position that corresponds to the number of pulses. Therefore, there is no need for a rotary encoder such as a DC servo motor, and the drive pulse signal from the power source can be used as it is as the angle signal. That is, in a step motor, the power supply serves as a motor control circuit and also functions as an angle signal generator. 1
If a motor with 400 rotation steps is used, the rotor shaft will rotate 0.9 degrees per pulse.
このように本発明によると、追加するのは回路
部品のみでコストが低くでき、かつスペースもと
らないので機構設計の自由度が増す。またノーマ
キング、ノーセンサで不釣合点を正確かつ迅速に
位置決めできるという効果がある。 As described above, according to the present invention, the cost can be reduced by adding only circuit components, and it does not take up much space, increasing the degree of freedom in mechanical design. Further, there is an effect that the unbalanced point can be accurately and quickly positioned by no-making and no-sensor.
第１図は本発明の一実施例のブロツク回路図、
第２図はピツクアツプ部分の構造説明図、第３図
は定速回転時の波形図、第４図は回転制御特性
図、第５図は停止時のタイムチヤートである。
１……被測定体、２……直流サーボモータ、４
……ロータリエンコーダ、５……モータ制御回
路、６……ピツクアツプ、７……フイルタ、８…
…波形整形回路、９……微分回路、１０，１１…
…フリツプ・フロツプ回路、１２……プリセツト
カウンタ。
FIG. 1 is a block circuit diagram of an embodiment of the present invention.
FIG. 2 is an explanatory diagram of the structure of the pickup section, FIG. 3 is a waveform diagram during constant speed rotation, FIG. 4 is a rotation control characteristic diagram, and FIG. 5 is a time chart when stopped. 1...Object to be measured, 2...DC servo motor, 4
...Rotary encoder, 5...Motor control circuit, 6...Pickup, 7...Filter, 8...
... Waveform shaping circuit, 9... Differential circuit, 10, 11...
...Flip-flop circuit, 12...Preset counter.
Claims (1)
回転信号を出力する回転信号発生手段と、被測定
体を回転駆動する駆動モータと、この駆動モータ
の回転を制御するモータ制御手段と、駆動モータ
のロータ軸の単位回転角度毎にパルス状の角度信
号を出力する角度信号発生手段と、任意のカウン
ト数をプリセツトしたプリセツトカウンタとを備
え、前記駆動モータによつて前記被測定体を起
動、増速、定速回転、減速、停止の順に制御を行
なう際、前記減速の制御開始後、前記回転信号の
トリガによつて前記角度信号を前記プリセツトカ
ウンタに入力し、角度信号のカウント数がプリセ
ツトされたカウント数に一致したとき前記駆動モ
ータを停止させるようにした自動不釣合点位置決
め装置。1. A rotation signal generating means that outputs a pulse-like rotation signal for each rotation of the unbalance point of the object to be measured, a drive motor that rotationally drives the object to be measured, and a motor control means that controls the rotation of the drive motor. The device is equipped with an angle signal generating means that outputs a pulse-like angle signal for each unit rotation angle of the rotor shaft of the drive motor, and a preset counter preset to an arbitrary count number, and the device is equipped with When performing control in the order of startup, speed increase, constant speed rotation, deceleration, and stop, after the start of the deceleration control, the angle signal is input to the preset counter by the trigger of the rotation signal, and the angle signal is counted. The automatic unbalance point positioning device is configured to stop the drive motor when the number matches a preset count number.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10659880A JPS5730924A (en) | 1980-08-02 | 1980-08-02 | Device for automatically positioning unbalanced point |
| US06/289,434 US4419894A (en) | 1980-08-02 | 1981-08-03 | Detection of angular location of unbalance of a rotor and positioning of the location to a predetermined angular position |
| EP81106064A EP0045505B1 (en) | 1980-08-02 | 1981-08-03 | Detection of angular location of unbalance of a rotor and positioning of the location to a predetermined angular position |
| DE8181106064T DE3175931D1 (en) | 1980-08-02 | 1981-08-03 | Detection of angular location of unbalance of a rotor and positioning of the location to a predetermined angular position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10659880A JPS5730924A (en) | 1980-08-02 | 1980-08-02 | Device for automatically positioning unbalanced point |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5730924A JPS5730924A (en) | 1982-02-19 |
| JPS6239890B2 true JPS6239890B2 (en) | 1987-08-25 |
Family
ID=14437578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10659880A Granted JPS5730924A (en) | 1980-08-02 | 1980-08-02 | Device for automatically positioning unbalanced point |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4419894A (en) |
| EP (1) | EP0045505B1 (en) |
| JP (1) | JPS5730924A (en) |
| DE (1) | DE3175931D1 (en) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3176938D1 (en) * | 1981-09-10 | 1988-12-22 | Schenck Ag Carl | Apparatus and method for transferring a measured angular location of unbalance to the circumference of a rotor |
| JPS5892924A (en) * | 1981-11-30 | 1983-06-02 | Inoue Japax Res Inc | Balancing tester |
| JPS58132641A (en) * | 1982-02-02 | 1983-08-08 | Kokusai Keisokki Kk | Self-positioning system for unbalanced point |
| DE3204016A1 (en) * | 1982-02-05 | 1983-08-18 | Wolf-Dieter 6100 Darmstadt Reutlinger | METHOD AND DEVICE FOR POSITIONING WORKPIECES TO BE BALANCED |
| US4467649A (en) * | 1982-05-25 | 1984-08-28 | American Hofmann Corporation | Apparatus for balancing rotatable bodies |
| JPS59111034A (en) * | 1982-12-17 | 1984-06-27 | Matsushita Electric Ind Co Ltd | Vertical balance tester |
| JPS604839A (en) * | 1983-06-22 | 1985-01-11 | Shimadzu Corp | Unbalance point detection method and positioning device for rotating body |
| US4687952A (en) * | 1984-02-06 | 1987-08-18 | United Technologies Corporation | Dynamic angular position sensor for a reference gear tooth |
| DE3479440D1 (en) * | 1984-07-18 | 1989-09-21 | Schenck Auto Service Geraete | Process and device for arresting a rotating object |
| DE3541459A1 (en) * | 1985-11-23 | 1987-05-27 | Schenck Ag Carl | Method for positioning a rotor to be balanced, and device therefor |
| JPS63182537A (en) * | 1987-01-26 | 1988-07-27 | Kokusai Keisokki Kk | Low speed rotary type automatic unbalance point positioning device |
| US4868762A (en) * | 1987-09-14 | 1989-09-19 | Balance Technology, Inc. | Automatic digital dynamic balancing machine and method |
| JP2804497B2 (en) * | 1989-02-13 | 1998-09-24 | 株式會社長濱製作所 | DUT stop control device in dynamic balance testing machine |
| US5209116A (en) * | 1989-03-10 | 1993-05-11 | Denshi Seiki Kogyo Kabushiki Kaisha | Unbalance point positioning apparatus and method |
| EP0407675A1 (en) * | 1989-07-13 | 1991-01-16 | IRD MECHANALYSIS, Inc. | Shaft synchronous balancing apparatus |
| DE4006867A1 (en) * | 1990-03-05 | 1991-09-12 | Reutlinger & Soehne Gmbh U Co | DEVICE FOR TURNING A BALANCE BODY INTO A MACHINING POSITION |
| ES2094864T3 (en) * | 1992-09-24 | 1997-02-01 | Schenck Rotec Gmbh | PROCEDURE FOR THE DETERMINATION OF IMBALANCE INHERENT TO A RIGID ROTOR DRIVEN IN ROTATION. |
| US5505083A (en) * | 1993-04-23 | 1996-04-09 | Hines Industries, Inc. | Split station modular balancing and correction machine allowing early removal of workpiece |
| US6324908B1 (en) | 1996-01-31 | 2001-12-04 | Hunter Engineering Company | Wheel balancer and control circuit therefor |
| DE19636267C2 (en) * | 1996-09-06 | 1998-08-13 | Hofmann Werkstatt Technik | Method for stopping a rotor mounted on a main shaft of a balancing machine and driven by an electric motor |
| DE19636268C2 (en) * | 1996-09-06 | 1998-07-16 | Hofmann Werkstatt Technik | Method for screwing a rotor, in particular a motor vehicle wheel, which is rotatably mounted in a balancing machine and can be driven by means of a drive, into balancing positions of two balancing planes for dynamic balancing mass compensation |
| DE10122135A1 (en) * | 2001-05-08 | 2002-11-14 | Voith Paper Patent Gmbh | Process for balancing rotors |
| GB2406147A (en) * | 2003-09-19 | 2005-03-23 | Dyson Ltd | A rotor assembly |
| DE602004007679T2 (en) * | 2003-09-19 | 2008-04-30 | Dyson Technology Ltd., Malmesbury | ROTOR ASSEMBLY |
| EP1714887B1 (en) * | 2004-01-30 | 2011-08-24 | Yoshino Kogyosho Co., Ltd. | Mouth cylindrical part of synthetic resin bottle body |
| GB0404380D0 (en) * | 2004-02-27 | 2004-03-31 | Rolls Royce Plc | A method and machine for rotor imbalance determination |
| US7023219B2 (en) * | 2004-06-29 | 2006-04-04 | Honeywell International, Inc. | A/C generator rotor test apparatus |
| US7270007B2 (en) * | 2005-06-03 | 2007-09-18 | Serrano Norman S | Apparatus and method for reducing vibration |
| US7764038B2 (en) * | 2007-04-26 | 2010-07-27 | Siemens Industry, Inc. | Devices, systems, and methods for relieving stress |
| JP5198920B2 (en) * | 2008-04-02 | 2013-05-15 | 湘南島津 株式会社 | Dynamic balance testing machine |
| US8429968B2 (en) * | 2009-10-08 | 2013-04-30 | Moscow Mills, Inc. | Balance test indexing tool for balance-testing a rotor |
| CN101762716B (en) * | 2009-11-27 | 2012-01-11 | 哈尔滨电机厂有限责任公司 | Fluted disc speed measuring device for water turbine generator |
| CN102980722B (en) * | 2012-12-05 | 2015-03-04 | 合肥工业大学 | Unbalance signal extracting method applicable to online dynamic balancing |
| CN107389268B (en) * | 2017-06-30 | 2019-08-09 | 西安交通大学 | A Method of Multi-point Field Dynamic Balancing Based on Fast Algorithm |
| CN110231161B (en) * | 2019-07-12 | 2020-11-24 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | Method and system for fault location diagnosis of single-span rotor based on three-dimensional coordinate system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3302491A (en) * | 1964-10-16 | 1967-02-07 | Stewart Warner Corp | Automatic unbalance location and balance apparatus |
| DE2243002B1 (en) * | 1972-09-01 | 1973-11-15 | Gebr. Hofmann Kg Maschinenfabrik, 6100 Darmstadt | Method and device for balancing rotors |
| JPS5039590A (en) * | 1973-08-13 | 1975-04-11 | ||
| US3910121A (en) * | 1973-08-28 | 1975-10-07 | Nortron Corp | Dynamic balancing machine |
| JPS5090385A (en) * | 1973-12-10 | 1975-07-19 | ||
| FR2326696A1 (en) * | 1975-10-02 | 1977-04-29 | Facom | MACHINE FOR BALANCING VEHICLE WHEELS |
| US4046017A (en) * | 1976-12-16 | 1977-09-06 | Fmc Corporation | Wheel balancing apparatus |
| DE2724696C3 (en) * | 1977-06-01 | 1980-11-06 | Carl Schenck Ag, 6100 Darmstadt | Method for determining the unbalance angle and device for this |
| JPS54101388A (en) * | 1978-01-27 | 1979-08-09 | Yamada Yuki Seizo Co Ltd | Phase measuring method of wheel balancer |
| US4724432A (en) * | 1985-08-15 | 1988-02-09 | Sperry Marine Inc. | Generation of graphic symbols for cathode ray tube displays |
-
1980
- 1980-08-02 JP JP10659880A patent/JPS5730924A/en active Granted
-
1981
- 1981-08-03 US US06/289,434 patent/US4419894A/en not_active Expired - Fee Related
- 1981-08-03 DE DE8181106064T patent/DE3175931D1/en not_active Expired
- 1981-08-03 EP EP81106064A patent/EP0045505B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3175931D1 (en) | 1987-04-02 |
| EP0045505A3 (en) | 1984-05-02 |
| US4419894A (en) | 1983-12-13 |
| EP0045505A2 (en) | 1982-02-10 |
| JPS5730924A (en) | 1982-02-19 |
| EP0045505B1 (en) | 1987-02-25 |
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